Listar por tema "Drought"
Mostrando ítems 1-20 de 21
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A simple experimental approach to simulate drought stress conditions in agar Petri dishes: characterization of the response in Medicago truncatula plantlets
Drought stress is the major factor in the reduction of crop yields causing significant economic losses. However, this stress is difficult to standardize under controlled conditions for research purposes. For molecular ... -
Assessing tree drought resistance and climate-growth relationships under different tree age classes in a pinus nigra arn. Ssp. salzmannii forest
The magnitude of drought impact in forest ecosystems depends on which group of trees are more severely affected; greater mortality of smaller trees can modulate the trajectories of succession, while the mortality of larger ... -
Carbohydrate and amino acid dynamics during grain growth in four temperate cereals under well-watered and water-limited regimes
Grain development in cereals depends on synthesis and remobilisation compounds such as water-soluble carbohydrates (WSCs), amino acids (AAs), minerals and environmental conditions during pre-and post-anthesis. This study ... -
Drought-induced changes in wood density are not prevented by thinning in Scots pine stands
Density is an important wood mechanical property and an indicator of xylem architecture and hydraulic conductivity. It can be influenced by forest management and climate. We studied the impact of thinning and climate ... -
Efecto del aumento en la biosíntesis de ácido ascórbico en la simbiosis Medicago truncatula-sinorhizobium meliloti en condiciones de estrés hídrico
(2019) Trabajo Fin de Máster/Master Amaierako LanaLa fijación biológica de nitrógeno (FBN) es un proceso muy sensible a estreses ambientales, sobre todo al estrés hídrico. Bajo estas condiciones el proceso de desarrollo nodular es el más afectado, ... -
Efecto del etileno en la regulacion de la simbiosis Medicago truncatula-Sinorhizobium meliloti en condiciones de estrés hídrico
(2020) Trabajo Fin de Máster/Master Amaierako LanaLa sequía afecta las relaciones hídricas, los parámetros fotosintéticos, el crecimiento y la fijación biológica de nitrógeno de leguminosas crecidas en simbiosis. La señalización del etileno en las respuestas fisiológicas ... -
Effect of volatile and non-volatile metabolites from Leptosphaeria maculans on tomato calli under abiotic stresses
Drought and salinity can be serious problems for agricultural productivity in certain planet areas. Leptosphaeria maculans is the causative agent of the blackleg in crucifer plants. In this work, a novel methodology for ... -
Estrés hídrico en leguminosas. Puesta a punto de un método para imponer distintos niveles de estrés hídrico en placas de Petri
Este trabajo final de grado pretende en primer lugar poner a punto un método para obtener plantas de Medicago truncatula expuestas a distintos niveles de estrés hídrico en placas de Petri creciendo bajo condiciones ... -
Interactions between climate and nutrient cycles on forest response to global change: the role of mixed forests
Forest ecosystems are undergoing unprecedented changes in environmental conditions due to global change impacts. Modification of global biogeochemical cycles of carbon and nitrogen, and the subsequent climate change are ... -
Is N-feedback involved in the inhibition of nitrogen fixation in drought-stressed Medicago truncatula?
Drought stress is a major factor limiting nitrogen fixation (NF) in crop production. However, the regulatory mechanism involved and the origin of the inhibition, whether local or systemic, is still controversial and so far ... -
Legume nitrogen utilization under drought stress
Legumes account for around 27% of the world’s primary crop production and can be classified based on their use and traits into grain and forage legumes. Legumes can establish symbiosis with N-fixing soil bacteria. As a ... -
Linkages between climate, seasonal wood formation and mycorrhizal mushroom yields
Fungi provide important forest ecosystem services worldwide. In Mediterranean pine forests, predicted warmer and drier conditions could lead to a decline in mushroom yields. Climate is a key factor regulating both tree ... -
Local inhibition of nitrogen fixation and nodule metabolism in drought-stressed soybean
Drought stress is a major factor limiting symbiotic nitrogen fixation (NF) in soybean crop production. However, the regulatory mechanisms involved in this inhibition are still controversial. Soybean plants were symbiotically ... -
Long-term mannitol-induced osmotic stress leads to stomatal closure, carbohydrate accumulation and changes in leaf elasticity in Phaselous vulgaris leaves
The effect of long-term osmotic stress was investigated in leaves of two common bean lines, with contrasting tolerance: Flamingo (tolerant) and coco blanc (sensitive). Water relations, organic solute, ion accumulation ... -
Mechanisms involved in drought stress tolerance triggered by rhizobia strains in wheat
Rhizobium spp. is a well-known microbial plant biostimulant in non-legume crops, but little is known about the mechanisms by which rhizobia enhance crop productivity under drought stress. This work analyzed the mechanisms ... -
Physiological, hormonal and metabolic responses of two alfalfa cultivars with contrasting responses to drought
Alfalfa (Medicago sativa L.) is frequently constrained by environmental conditions such as drought. Within this context, it is crucial to identify the physiological and metabolic traits conferring a better performance under ... -
A proteomic approach reveals new actors of nodule response to drought in split-root grown pea plants
Drought is considered the more harmful abiotic stress resulting in crops yield loss. Legumes in symbiosis with rhizobia are able to fix atmospheric nitrogen. Biological nitrogen fixation (SNF) is a very sensitive process ... -
A proteomic view on the role of legume symbiotic interactions
Legume plants are key elements in sustainable agriculture and represent a significant source of plant-based protein for humans and animal feed worldwide. One specific feature of the family is the ability to establish ... -
Short-term exposure to high atmospheric vapor pressure deficit (Vpd) severely impacts durum wheat carbon and nitrogen metabolism in the absence of edaphic water stress
Low atmospheric relative humidity (RH) accompanied by elevated air temperature and decreased precipitation are environmental challenges that wheat production will face in future decades. These changes to the atmosphere are ... -
SilvAdapt.Net: a site-based network of adaptive forest management related to climate change in Spain
Adaptive forest management (AFM) is an urgent need because of the uncertainty regarding how changes in the climate will affect the structure, composition and function of forests during the next decades. Current research ...